📄 常用的struts 2_0的标志（tag）介绍 - max on java - blogjava.htm
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<TD>Object/String</TD>
<TD>用来标识元素的id。在UI和表单中为HTML的id属性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>请参考例4。 </P></DIV>
<LI style="FONT-SIZE: 12px">set
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>set标签赋予变量一个特定范围内的值。当希望给一个变量赋一个复杂的表达式,每次访问该变量而不是复杂的表达式时用到。其在两种情况下非常有用:
复杂的表达式很耗时 (性能提升) 或者很难理解 (代码可读性提高)。 </P>
<P>参数： </P>
<TABLE
style="BORDER-TOP: #008000 2px solid; BORDER-BOTTOM: #008000 2px solid"
cellSpacing=0 cellPadding=4 border=0>
<TBODY>
<TR>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">名称</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">必需</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">默认</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">类型</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">描述</TD></TR>
<TR>
<TD>name</TD>
<TD>是</TD>
<TD></TD>
<TD>String</TD>
<TD>变量名字</TD></TR>
<TR>
<TD>scope</TD>
<TD>否</TD>
<TD></TD>
<TD>String</TD>
<TD>变量作用域,可以为application, session, request, page, 或action.</TD></TR>
<TR>
<TD>value</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>将会赋给变量的值</TD></TR>
<TR>
<TD>id</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>用来标识元素的id。在UI和表单中为HTML的id属性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>请参考例1。 </P></DIV>
<LI style="FONT-SIZE: 12px">text
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>支持国际化信息的标签。国际化信息必须放在一个和当前action同名的resource
bundle中,如果没有找到相应message,tag body将被当作默认message,如果没有tag
body,message的name会被作为默认message。 </P>
<P>参数： </P>
<TABLE
style="BORDER-TOP: #008000 2px solid; BORDER-BOTTOM: #008000 2px solid"
cellSpacing=0 cellPadding=4 border=0>
<TBODY>
<TR>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">名称</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">必需</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">默认</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">类型</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">描述</TD></TR>
<TR>
<TD>name</TD>
<TD>是</TD>
<TD></TD>
<TD>String</TD>
<TD>资源属性的名字</TD></TR>
<TR>
<TD>id</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>用来标识元素的id。在UI和表单中为HTML的id属性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>请参考例3。 </P></DIV>
<LI style="FONT-SIZE: 12px">url
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>该标签用于创建url,可以通过"param"标签提供request参数。 </P>
<P style="TEXT-ALIGN: center"></P>
<TABLE
style="BORDER-RIGHT: #f0c000 1px solid; BORDER-TOP: #f0c000 1px solid; BORDER-LEFT: #f0c000 1px solid; BORDER-BOTTOM: #f0c000 1px solid; BACKGROUND-COLOR: #ffffce"
cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD
style="PADDING-RIGHT: 4px; PADDING-LEFT: 4px; PADDING-BOTTOM: 4px; PADDING-TOP: 4px; HEIGHT: 39px"><IMG
src="常用的Struts 2_0的标志（Tag）介绍 - Max On Java - BlogJava.files/lightbulb_on.gif"></TD>
<TD
style="PADDING-RIGHT: 4px; PADDING-LEFT: 4px; PADDING-BOTTOM: 4px; PADDING-TOP: 4px; FONT-FAMILY: 华文仿宋; HEIGHT: 39px"
align=left>当includeParams的值时'all'或者'get',
param标签中定义的参数将有优先权,也就是说其会覆盖其他同名参数的值。 </TD></TR></TBODY></TABLE>
<P>参数： 略</P>
<P>例子： </P>
<DIV
style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00"><%</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@ page contentType</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">text/html; charset=UTF-8</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> </SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00"><%</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@ taglib prefix</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">s</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> uri</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">/struts-tags</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> </SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"><!</SPAN><SPAN
style="COLOR: #ff00ff">DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">html</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">head</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">title</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">URL</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">title</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">head</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">body</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">h3</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">URL</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">h3</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"> <BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">a </SPAN><SPAN
style="COLOR: #ff0000">href</SPAN><SPAN
style="COLOR: #0000ff">='<s:url </SPAN><SPAN
style="COLOR: #ff0000">value</SPAN><SPAN
style="COLOR: #0000ff">="/i18n.jsp"</SPAN><SPAN
style="COLOR: #ff0000"> </SPAN><SPAN
style="COLOR: #0000ff">/></SPAN><SPAN
style="COLOR: #000000">'>i18n</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">a</SPAN><SPAN
style="COLOR: #0000ff">><</SPAN><SPAN
style="COLOR: #800000">br </SPAN><SPAN
style="COLOR: #0000ff">/></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:url </SPAN><SPAN
style="COLOR: #ff0000">id</SPAN><SPAN
style="COLOR: #0000ff">="url"</SPAN><SPAN
style="COLOR: #ff0000"> value</SPAN><SPAN
style="COLOR: #0000ff">="/condition.jsp"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:param </SPAN><SPAN
style="COLOR: #ff0000">name</SPAN><SPAN
style="COLOR: #0000ff">="name"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">Max</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:param</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:url</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"> <BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:a </SPAN><SPAN
style="COLOR: #ff0000">href</SPAN><SPAN
style="COLOR: #0000ff">="%{url}"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">if\elseif\else</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:a</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">body</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">html</SPAN><SPAN
style="COLOR: #0000ff">></SPAN></DIV><SPAN
style="FONT-SIZE: smaller; FONT-STYLE: italic">例5 url.jsp</SPAN>
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